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Advantages and applications of Ultraviolet curing

Ultraviolet curing is the process using ultraviolet rays to initiate the photochemical reaction to produce polymers.UV curing is applicable for printing, coating, decoration, stereolithography and assembly of various products and materials.Compared with other curing techniques, ultraviolet curing can be considered as a low temperature, high speed, solvent-free process.because ultraviolet curing paths do not involve any physical change.

Fast processing speed is a significant feature of the ultraviolet curing.The defects and errors of the curing process may be reduced by reducing ink and coating wettability.Improve the quality of finished products and ensure the consistency of products.

The medium pressure mercury vapor lamp has always been an industry standard for the product curing with ultraviolet ray.The bulb energizes the mixture of Hg and inert gas by sending discharge to produce plasma.Once Hg reaches the plasma state, it will radiate hyperspectral output in the electromagnetic spectrum UV region.The main peaks of the light intensity occur in the regions of 240-270 nm and 350-380 nm.These intense peaks will result in rapid curing of the material when matched with the photoinitiator absorption curves.By changing the bulb mixture with different gases and metal halides, the distribution of wavelength peaks can be changed, and the material interaction will also be changed.

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Post time: Feb-18-2022